CKSEG1ADDR() returns unsigned int value on 32bit kernel. Cast it to
unsigned long to get rid of this warning:
include2/asm/io.h:215:12: warning: cast adds address space to expression (<asn:2>)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Use physical address for 82596 and 53c710 base address
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This driver has been broken forever. It depends on i2c-algo-8xx which
has never been in the mainline kernel.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Work around a problem reported on:
http://ozlabs.org/pipermail/linuxppc-embedded/2005-July/019038.html
Without this patch I2C on mpc5200 becomes unusable after a while.
Tested on mpc5200 boards by Matthias Fechner and me.
Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Add TWI driver for the PMC-Sierra MSP71xx devices.
[JD: Drop the probe hack, don't set algo_data as we never use it, return
the right error code if the driver registration fails.]
Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
There's some redundancy in the tsl2550 initialization sequence. It is
powering up the device twice, and setting the operating mode twice
too. Setting things just once saves SMBus transactions, which aren't
always cheap, speeding up the device initialization.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rodolfo Giometti <giometti@linux.it>
This is a new I2C bus driver for the TAOS evaluation modules. Developped
and tested on the TAOS TSL2550 EVM.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Add an ability to utilize the internal SRAM buffer on ICH4
and newer host controllers to speed up execution of block operations.
I've split the code so that it is more clear which block transaction is
performed.
First of all the host controller's type is identified. isich4 is set when
we think that the controller has the internal buffer. Then, before every
block transaction, if isich4 is set, we attempt to enable the E32B bit in
SMBAUXCTL register.
Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
* Use defines instead of raw numbers for register bits
* Fix several wrong indentations and trailing whitespace
* Move hwpec timeout checking to a separate function
Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
i2c_gpio_getsda() and i2c_gpio_getscl() are only used in this file.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Use i2c_bit_add_numbered_bus() so that the i2c-gpio adapter works well
with new-style pre-declared devices.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Update the IOP3xx I2C driver to use i2c_add_numbered_adapter(), so that
later patches can convert boards to using new-style drivers.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Tested-by: Voipio Riku <Riku.Voipio@movial.fi>
Cc: Dan J Williams <dan.j.williams@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Let the i2c-sis5595 driver release its PCI device after registering.
This is to allow the sis5595 hardware monitoring driver to also
access this PCI device. The same trick is already used in the
i2c-viapro and via686a drivers to let them both load.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
matroxfb_crtc2 has nothing to do with i2c, so there's no reason why
matroxfb_crtc2.h should include i2c header files.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Petr Vandrovec <vandrove@vc.cvut.cz>
Add support for SMBus block read/write transactions to i2c-nforce2
driver, in particular to host controllers MCP51 and MCP55.
Signed-off-by: Oleg Ryjkov <olegr@google.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Move the i2c-mpc driver over to using the new i2c infrastructure.
Specifically, it now uses i2c_add_numbered_adapter so that the bus number
can be determined ahead of time and used to register i2c clients before
the bus is instantiated.
Tested on an MPC5200 based board
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Convert the Marvell mv64xxx I2C driver to use the new i2c infrastructure,
by calling i2c_add_numbered_adapter(). This allows clients to be
registered before the bus is instantiated.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
A driver for the Dallas DS1682 elapsed time recorder chip.
Tested on a MPC5200 based board using the integrated i2c adapter.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Let the drivers specify how many bytes they want to read with
i2c_smbus_read_i2c_block_data(). So far, the block count was
hard-coded to I2C_SMBUS_BLOCK_MAX (32), which did not make much sense.
Many driver authors complained about this before, and I believe it's
about time to fix it. Right now, authors have to do technically stupid
things, such as individual byte reads or full-fledged I2C messaging,
to work around the problem. We do not want to encourage that.
I even found that some bus drivers (e.g. i2c-amd8111) already
implemented I2C block read the "right" way, that is, they didn't
follow the old, broken standard. The fact that it was never noticed
before just shows how little i2c_smbus_read_i2c_block_data() was used,
which isn't that surprising given how broken its prototype was so far.
There are some obvious compatiblity considerations:
* This changes the i2c_smbus_read_i2c_block_data() prototype. Users
outside the kernel tree will notice at compilation time, and will
have to update their code.
* User-space has access to i2c_smbus_xfer() directly using i2c-dev, so
the changed expectations would affect tools such as i2cdump. In order
to preserve binary compatibility, we give I2C_SMBUS_I2C_BLOCK_DATA
a new numeric value, and define I2C_SMBUS_I2C_BLOCK_BROKEN with the
old numeric value. When i2c-dev receives a transaction with the
old value, it can convert it to the new format on the fly.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
We have a new RTC subsystem with better drivers.
Legacy driver status:
* ds1337: The DS1337 and DS1339 are now supported by the rtc-ds1307
driver, so it looks to me like we could even delete the ds1337
driver right away.
* ds1374: Will soon be replaced with Scott Wood's rtc-ds1374 driver.
* m41t00: The M41T00 is supported by the rtc-ds1307 driver. For the
M41T81 and M41T85, the rtc-m41t80 driver written by Atsushi Nemoto
should work.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Acked-by: James Chapman <jchapman@katalix.com>
Cc: Randy Vinson <rvinson@mvista.com>
The x1205 driver moved to the RTC subsystem and was significantly
modified since then, so just delete the outdated documentation.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
The scx200_acb driver use a semaphore as mutex. Use the mutex API
instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Kill a sparse warning by un-nesting two container_of() calls.
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Generate I2C kerneldoc; fix various glitches and add "context" sections to
that documentation. Most I2C and SMBus functions still have no kerneldoc.
Let me suggest providing kerneldoc for all the i2c_smbus_*() functions as
a small and mostly self-contained project for anyone so inclined. :)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
However there are similar things in the EBIU_DDRQUE Register
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
we converted to using a system call for userspace spinlocks
rather than a dedicated exception long ago
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
